Ankle is a spot that is sometimes never quite right again. I hurt mine fairly badly 3 months or so ago and while it mostly healed, there are still times where it locks up or I cant bend it a certain way. I didnt have surgery and I dont know how serious his is prognosis wise, but it causes me concern.
Listening to Saban, it seems that it has become a regular surgery for his players and none of the previous guys have had any continuing issues.
That is a positive. Though I don't think Saban would say anything to hurt his players stock to be fair. If he comes back without further issues until the end of the year I think you can at least feel okay taking him.
This last article is about the best I've found in terms of detail and infomation. If you read just one thing or watch one thing on Tua's ankle, make it this one below: https://www.si.com/college-football...iloa-ankle-surgery-alabama-injuries-tightrope
It's just a gut feeling, but if Tagovolia plays poorly this week vs LSU and is hampered by the ankle the remaining month or so, where Alabama's two remaining SEC games are on the road, the odds increase for him going back to school in 2020.